Cigarette smoking is a significant contributor to global warming!

Hurricane Sandy is a disturbing sign of things to come. We must heed this warning and act quickly to solve the climate crisis. Dirty energy makes dirty weather.

The ten hottest years in the atmospheric record, going back only 160 years, have been in the last eleven years.

It seems an easy choice - sacrifice the tree for a human life - until one learns that three trees must be destroyed for each patient treated. Suddenly we must confront some tough questions. How important are the medical needs of future generations?

The struggle against poverty in the world and the challenge of cutting wealthy country emissions all has a single, very simple solution... Here it is: Put a price on carbon.

We've seen the bankruptcy of many newspapers. We've seen a further erosion of the line between news and entertainment. But I do believe that there is reason to hope that over time we will see the higher-quality journalism rise to the surface.

I was in elective politics for 24 years. I've made four national races, two for president, two for vice president. I have found there are other ways to serve, and I'm enjoying them.